Improvement in evaporating-pans



A. D. MARTIN. E'vaporating. Pan.

No. 204,745. Patented June It, 1878..

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WITNESSES: @4

ATTORNEYS.

NPETERS. FHUTO LITI1DGRAPHER. WASHINGTON, D, C.

UNITED STATES PATENT QFFICE.

ANDREW D. MARTIN, OF ABBEVILLE, LOUISIANA.

IMPROVEMENT IN EVAPORATlNG-PANS.

Specification forming part of Letters Patent N0. 204,745, dated June 11, 1878; application filed March 20, 1878.

To all whom it may concern:

Be it known that I, ANDREW D. MARTIN, of Abbeville, in the parish of Vermillion and State of Louisiana, have invented a new and Improved Sugar-Evaporator, of which the following is a specification:

Figure 1 is a plan view, partly in section, of my improved sugar-evaporator. Fig. 2 is a longitudinal section taken on line 00 x in Fig. 1.

Similar letters of reference indicate corresponding parts.

My invention consists in a tapering sheetmetal tank having transverse partitions and longitudinal taperin g flues that exte'n (1 through all of the partitions and terminate at the ends of the tank.

The said tank is set in brick-work, in which there is a fire-box, and a smoke stack is provided for carrying away the smoke.

Referring to the drawing, A is a tank made of sheet-iron or other suitable material, and having sides a b, which converge toward a smoke-box, 0, formed in the smaller end of the tank. The upper and lower edges of the sides are parallel, so that the tank is of one depth throughout its entire length.

The tank is divided transversely by parti tions def, forming compartments 9 hi j, for

receiving the juice of the sugar-cane.

A smoke-stack, p, is connected with the sm oke-box c, for conducting away the products of combustion.

The juice to be evaporated is placed firstin a the compartment j, and, after boiling for a time, is removed to the compartment i by means of the pump q. After it becomes further evaporated in the compartment 6 it is pumped into the compartment h, and from this compartment to the compartment g, where the process of concentrating the juice is carried as far as it is possible to carry it in open vessels.

I am aware that it is not new in evaporating-pans to use liquid-compartments and traversing-fines with a furnace; but my fiues have a larger heatin g-surface in the larger compartments, the latter diminishing in size as they approach the smoke-pipe. The difl'erent sizes of compartment or kettle are very essential in sugar-boiling, the larger gradually preparing the juice for the smaller, where it is boiled to sugar without the admixture of any raw juice, thus producing a very fine and clean sugar.

What I claim as new and of my invention An evaporatingpan for the manufacture of sugar, divided into separate compartments 9 h i j, gradually increasing in size from the smoke-pipe c to the smoke-box n,-said pipe being connected with the box by tapering flues k, passing through the compartments and the box with the furnace by a flue, m, under the compartments, as shown and described.

A. D. MARTIN.

Witnesses:

W. W. EDWARDS, LUoIUs N EVEN. 

